I don't follow the Nets as well as I could, but it seems like he did better when he had Jason Kidd as a mentor.

Mathius

His time to shine was once Kidd left town and Harris was injured... and he did, for a couple of games. The only effect Kidd had was that NJ fans saw how much better the team played under Kidd and how quickly the lead would shrink (or deficit would grow) with Marcus in.